
Crossed Eyes
Eye Exams
Glasses
Lazy Eyes
Reading/Learning Disabilities
Sunglasses
Crossed Eyes
Crossed eyes are a commonly used term for the technical
phrases esotropia. This condition occurs where either
eye may look straight ahead and the other eye will be
turned inward toward the nose.
The condition develops generally
in early infancy or childhood. Many children during the
first three to four months of life will have some intermittent
crossing of their eyes. However, persistent crossed eyes
in young children after the age of three to four months
should be considered a serious condition. The eye that
is turned begins to be ignored by the brain and eventually
that image can be fully suppressed. If the condition is
not properly treated, that can lead to permanent functional
blindness.
Esotropia can also occur in the
teen and adult population. This can be related to systemic
disorders like: high blood pressure, diabetes, strokes
or other brain injuries. These health-related problems
will either affect the nerves that communicate between
the brain and the eye or the eye muscles themselves. The
first sign of a problem is usually double vision. This
should result in a prompt referral to a physician.
Treatment of misalignment of the
eyes includes correcting a refractive error with glasses.
Patching or other devices to force the use of the less-preferred
eye is commonly used. After these basic interventions,
if the eyes are still not aligned, surgical adjustment
of the eye muscles may be needed.
Detection of these eye problems,
both in childhood and later years, is crucial. Your child
should be examined by their pediatrician during the pre-school
years and evaluated for this and other disorders.
Eye
Exams
All children should have an initial eye evaluation by
their pediatrician within the first few days to one week
of life. In fact, many hospitals evaluate a child before
they are discharged after birth.
During each of the babys well-visit
examinations, the pediatrician will be asking you questions
about your babys eyes and doing brief screening evaluations.
Persistent misaligned eyes after the age of three or four
months, persistent discharge from the eyes, an irregularity
of the eye or an general health problem that may relate
to the eye, will initiate referral to an ophthalmologist.
Typically, at age one and then
age three, the pediatrician will be doing some ore extensive
screening appropriate to the childs age. At age three,
if a child does not seem to have equal visual acuity in
both eyes or does not reach a certain level on the eye
chart, your pediatrician will decide to send your child
for an eye examination.
Between three and five years of
age, if you believe your child is having difficulty seeing
or if there is a family history of needing glasses at
an early age, it certainly is worthwhile having an eye
exam. Most children should have an eye exam before they
begin first grade. It is always helpful to bring a child
to someone who specializes in children, for example a
pediatric ophthalmologist. Remember, any child, any age
can be examined.
Glasses
Glasses are used to produce a clear image on the back
wall of the eye or the retina. This is similar to focusing
an image onto film in a camera. In children, a special
examination requiring the use of strong, long-acting drops,
is needed in order to make an independent assessment of
their need for glasses.
Nearsighted children are ones
in which objects that are close are clear while objects
that are far away, are not. This is called myopia. Farsightedness,
or hyperopia, is sight which is better at a distance than
near. Eventually, this does occur in adulthood when the
lens of the eye can no longer focus for ourselves. However,
children are actually normally farsighted. The lens inside
their eye can easily focus this for them and they remain
with clear vision. However, large amounts of farsightedness
can induce eye strain and this strain can even lead to
crossing of the eyes. Astigmatism is a condition where
the eye is not completely round. This causes a distortion
of the optical image coming into the eye.
There are special considerations
in fitting a child for glasses. For example, polycarbonate
is the lens material of choice. This protects children
who are at a higher risk for lens shattering. Additionally,
frames that are picked for children should be especially
for kids and not just a pair of small adult eyeglasses.
Remember, it is never too early to have a child's eye
examined if you think there is a problem. For more information
regarding eye glasses, contact your health care provider.
Lazy
Eyes
Lazy eye is a commonly used term for both amblyopia and
strabismus. Amblyopia generally results in poor vision
without any obvious injury or disease to the eyeball.
Strabismus represents any misalignment of the eyes.
Amblyopia can be treated using
an eye patch and more frequently, the use of blurring
drops. The younger the age of the child when amblyopia
is diagnosed, the easier and more successful treatment
is. Generally, amblyopia becomes most difficult to treat
after the age of seven or eight but with persistence,
even in these more advanced years, some success is possible.
Untreated amblyopia will result in a permanent decrease
in vision, even to the level of functionally blind.
Strabismus, or misalignment of
the eyes, is quite serious. Strabismus often leads to
amblyopia. If strabismus occurs during early childhood,
it is generally an otherwise benign condition. Treatment
requires either glasses or sometimes, surgical intervention.
Acquired misalignment of the eyes as an adult, can be
an indication of a more serious underlying problem and
must be evaluated promptly.
For more information regarding
lazy eye, amblyopia or strabismus, contact your health
care provider.
Reading/Learning
Disabilities
Many people are quite misinformed regarding reading and
learning disabilities. Learning disabilities are generally
not related to eye problems. Most learning disabilities
involve difficulty processing information by the brain.
Many reading difficulties trace
back to difficulties with the skills of reading. This
is different than indicating an eye or vision problem.
However, any child being evaluated
for a reading disability should have a complete eye evaluation.
There are simple things that can be identified and detected
and treated that can impact learning. Specialists What
a great program in which to be involved in helping students
with these difficulties should be aware of these issues.
The school system provides in-depth resources for both
the identification and treatment of these issues.
Sunglasses
Sunglasses serve two major functions. They decrease the
amount of sunlight reaching your eye for comfort and protect
your eye and surrounding structures from the devastating
damage of ultraviolet light. Ultraviolet light has been
linked to the formation of cataracts, macular degeneration,
intraocular tumors, skin cancer on the lids and pterygium,
an abnormal growth on the eye's surface.
It has been estimated that up
to seventy percent of your life time sun exposure occurs
under the age of eighteen. Ultraviolet light and sun exposure
damage is cumulative. In addition, a child's eyes are
more susceptible to ultraviolet exposure because the lens
in their eye is clearer. Therefore, decreasing the amount
of sun exposure in childhood becomes essential. Children
who cannot tolerate sunglasses should wear a wide-brimmed
hat, which will provide some UV protection.
Sunglasses should be purchased
that have complete ultraviolet blockage. Do not be misguided
by price- higher priced sunglasses usually represent fashion
trends or durability, not UV protection. Also, if sunglasses
do not fit properly their UV protection is minimized or
lost.
The easy way to remember when
to wear sunglasses is this: When you go outside you should
protect your eyes; consider sunglasses the "suntan
lotion for the eyes."